Cap-valve.



A. E. MOORHEAD.

Patented July 13, 1909.

S [N VEN TOR). W 2;

WITNESSES:

L IYQTORNEY.

\TJBERT ID. ll'IOORHEAD, 01 SAN FRANCIS), CALIFORNIA.

CAP-VA LVE Specification of Letters Patent.

Patented July 13, 1909.

Application filed October 28, 1908. SerialNo. 459,947.

To all whom it may concern:

Be it known that I, ALBERT E. Mooannm), a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful improvements in (ap-Valves, of which the following is a speeilieation.

This invention relates i 03? combination pressure and vacuum valve, es )eeiall v adapted for use with. pneumatic cleansing apparatus in buildings.

For such apparatus stationary pipes in the building are connected to llexible hose pipes which at their other ends are connected to movable implements such as pneumatic srgioepers. Air is generally drawn by suction to which it is coiniected: l ig. 2 is a sectional view ol the valve, howing in sale elevation the coupling upon which the valve is n1ounted; Fig. 3 is an end view of the valve.

ltel'erring to the drawing, l indicates a portion of a fixed pipe to which the valve is connected. Into the ends of said pipe is screwed a tapered threaded end 2 of a coupj lingZB, ()n the end of said coupling are formed lugs 4 through which passes a pivot pin 5 by whichis pivoted a ca valve 6. ()n the inner side of said ca va ve, is placed a gasket 7 of soft rubbely held in place by a disk 8 of metal secured in place by a central screw 9. Said gasket 7 abuts against the outer end ol the coupling and forms a. tight joint thereagainst. The lower 'side of the cap valve, opposite to the pivot, is formed with a l'orked extension ll) into which can pass a hinge bolt l l pivoted between lugs 12 depending l'roin the coupling. -Upon the threiuled outer end of said hinge bolt is screwed a wing nut 13.

When it is desired to attache hose pipe to the stationary pipe, the wing nut is unscrewed to permit the bolt to drop, and the cap valve is then swung upward and the end ol the hose inserted. But, when closed, the wing nut can hold the cap valve very lirinlv to its seat, so that, it corn ressed air be forced through the pipes in the building no leakage can take place at the ends ol' those ipes which are not connected to hose pipes but are closed by these cap valves.

l claiinz-- .[u an apparatlu: ol' the character described, in combination screwed to the end of aid pipe, a cap valve pivoted on one side of the outer end ll the coupling, a hinge bolt pivoted on the opposite side thereof, the ("1p valve being lUlbLtl on said opposite side to receive said hinge bolt, a nut on the threaded outer end of the hinge bolt, nnda llexible gasket on the inside ol' said ap valve, adapted to abut against the outer end ol the coupling, substantially as described.

in testimony vvltereol' have hereunto set my hand in the pre nce of two subscribing witnesses.

AliBlCltl l MOO'ltllEAD. Witnesses:

Fa mers M. \VIHGH'I, l). B. llrcnauns;

with a pipe, a coupling 

